Halpern, S. W., Nard, C. A., & Port, K. L. (1999). Fundamentals of United States intellectual property law: Copyright, patent, and trademark. Kluwer Law Internat.
Chicago Style (17th ed.) CitationHalpern, Sheldon W., Craig Allen Nard, and Kenneth Lloyd Port. Fundamentals of United States Intellectual Property Law: Copyright, Patent, and Trademark. The Hague [u.a.]: Kluwer Law Internat, 1999.
MLA (9th ed.) CitationHalpern, Sheldon W., et al. Fundamentals of United States Intellectual Property Law: Copyright, Patent, and Trademark. Kluwer Law Internat, 1999.
Warning: These citations may not always be 100% accurate.